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Learning objective

Analyze and interpret graphs and diagrams that depict population growth trends.

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE BiologyOrganisms and their environmentCore content

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Quick explanation

Analyze and interpret graphs and diagrams that depict population growth trends

  • This point belongs to Populations, especially Populations outcomes.
  • You need to be able to analyze and interpret graphs and diagrams that depict population growth trends.
  • The key ideas to know are Interpret.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Interpret

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Paper 3 structured question: Populations

Paper 3Theory (Core)2 marks

Diagram Description

Population Growth Curve

A graph shows population size on the y-axis and time on the x-axis. The curve starts slowly, then rises steeply, and finally levels off forming an S-shape.

  1. a

    Identify What type of population growth is shown by the S-shaped curve?

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    State Give one reason why the population growth levels off at the top of the curve.

    Aim for approximately 1 distinct marking point.

    [1]
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